Christopher McCullum is awaiting trial for murder in the February incident.

Six police interviews have been released, including one from a man who said he saw what happened.

“It appears the man is going to yell at the driver for whatever reason and suddenly I see the gun,” eyewitness Bruno Azevedo said.

Azevedo said during the morning rush hour on Feb. 25, he and his wife were heading downtown on I-71 traveling behind a white work van.

“I saw a gun out the driver's side and he shot that black vehicle several times and I mean several times. It was just unloading the gun and I got really scared. I didn't know what to do,” Azevedo said.

Azevedo said the black vehicle continued on another five or six seconds.

“The white van, you know, went to the right side of the road one more time and then unloaded on the car one more time,” Azevedo said.

The black Lexus SUV ran off the road and into the barrier.

Several passersby stopped and tried to help, including Kevin Brodie.

“I reached in. I checked for a pulse. He was not breathing. His chest was not rising and falling,” Brodie said.

Mukhtar Ahmad, who had just dropped off his daughter at her school was dead. Investigators believe the murder weapon was a 45-caliber handgun.

Hours later a white work van was stopped on the Blankenbaker Parkway ramp from eastbound Interstate 64.

According to court records, police found several spent shell casings in the vehicle.

McCullum, 43, was driving.

He was arrested on a murder charge.

His attorney entered a not guilty plea at his arraignment.

Louisville Metro police have three other interviews that they have not placed in the court file at this time, though they have been made available to McCullum's attorney.

Along with murder, McCullum is also charged with wanton endangerment and tampering with evidence